COMOWARE 3PCS HSS Step Bits Set High Speed Steel Step Drill Bits Set - (4-12mm, 4-20mm and 4-32 mm) Cone Drill Bits Hole Cutter for Wood Stainless Steel Sheet Metal

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COMOWARE 3PCS HSS Step Bits Set High Speed Steel Features

• This Step Drill Bit Set contain 3 size: 4-12mm, 4-20mm and 4-32 mm, Supplied with a portable fabric bag.

• Two-fluted design provides faster, smoother drilling, Provided with small pressure and the sets can cut through wood, plastic and other surfaces thickness under 5mm. Step Cone Drill Bits design for precision drilling different size holes from 4mm up to 32mm in diameter,optimum speed and accuracy.

• Titanium High Speed Steel Drill bits & Application: classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper and many other types of sheet metal.Titanium drill bit is particularly suitable for processing copper and aluminum pieces / mold steel / spring steel / cast iron pieces / iron and other metal materials.

• Quick Assemble: 1/4" hex shank work with most drill or drills with 1/4" chuck.

• Automatic center punch: Containing spring, the punch can automatically expand and contract to increase the directional impact force. Mark a certain degree of directional impact on the drill hole, and can be used together with step drill.

About COMOWARE 3PCS HSS Step Bits Set High Speed Steel

Unique step design, drill bits can be used to drill holes of various sizes and are equivalent to a drill box.